About Us

énergie Fitness Cardiff St Mellons is a new gym in Cardiff with friendly staff on hand to help and welcome you so you can be confident you can reach your fitness goals! You can join our gym if you are 16 years old or older. If you are between 16 and 18 you need to join in the gym, otherwise you can join online. We have a wide variety of cardio machines, resistance and free weight equipment. There are great classes delivered by personal trainers so the experience is very much the style of small group PT (Personal Training)!

The gym is locally owned by me, James, and I live in St Mellons. My aim is to give a more welcoming friendly gym experience so it's more than just a gym but a place where you can feel comfortable and make new friends.

We can’t wait to see you where you belong at énergie Fitness Cardiff St Mellons.

Click here for a virtual tour of the gym



Membership Options

Our Classic membership allows access to the gym, free parking, free wifi, an induction (Kickstart Orientation Session), some classes including cycle.

Our WOW membership offers multi club access and allows you to log into your Netflix account on the Precor Preva cardio machines. It also gives you access to our premium classes including Yoga, Pilates and Energie Bootcamp! You also get 10 days advance booking for classes and discounts with some local and national businesses including 10% off at the new restaurant Milk and Sugar that is also within Eastern Business Park! You can save money by paying up front for a fixed term gym membership. This option will cost you less per month than the pay monthly options.


Safe Exercise

We have comprehensive plan in place to ensure the safety of members and staff, while maximising the opportunity for our members to return to fitness. These include a wide range of measures including a comprehensive cleaning plan, contactless entry, personal protective equipment for all staff, hand sanitiser stations, changing layouts for controlling capacity and more.  All these measures will ensure that our members feel looked after, happy, and safe. 



Opening Hours

Mon - Fri 6:00am - 10:00pm

Saturday  8:00am - 8:00pm

Sunday            8:00am - 6:00pm


Building One,
Eastern Business Park,
Suite 3-8,


Energie Online:
We also provide online classes so you can continue your fitness journey from the comfort of your own home! We provide a great selection of online classes via a free app called Zoom you can download free on a desktop, laptop, tablet or on a smartphone. The classes are accessible by logging into your personal area on the website or using our app. To do so book yourself into one of the classes listed with "online" next to it in brackets. Please book at least 2 hours in advance of the class start time. We then send you a link to your email address before the class starts!

With our unique personal service with staff available to help we are certain that we are the gym ‘where you belong’ ensuring we deliver the énergie promise:

We are here to wow you: We are on a mission to amaze and delight you. We play: énergie by name and énergie by nature – we will make you sweat and smile. A place for you: You don’t just join our gym, you join our family.

This class is a great way to burn lots of calories and produce fantastic results. This high energy, low impact class allows your body to recover quickly while strengthening your legs and core.

An all round core strengthening class with focus on working key muscles groups to keep your body strong and improve your posture.

Exclusive to our WOW members in our bespoke training area! In our bootcamp we deliver an epic experience to challenge you. Have you got what it takes?"


Car Park
Free weights
Changing Rooms
Cardio Machines
Personal Training
thé YARD
Olympic Lifting Platform
Cycle Studio



Discover énergie Fitness

Video 2 -Image Left - 25%


Where You Belong


Introducing thé YARD